PROTOTYPE 2
43 Achievements
1,000
15-20h
Master Prototype
Completed the game on HARD difficulty.
50
How to unlock the Master Prototype achievement in PROTOTYPE 2 - Definitive Guide
Dodgerofjam mentioned "you get the most EP from campaign missions (exponentially bigger as the story progresses!)?"
He will have 3 health bars, and a QTE after all of them have depleted.
This can also be unlocked in NG+ if you have already completed the game on easy before, which is also going to make it easier for you to evolve the character to the max level
This can (and should) be done in New Game+! Simply complete all of the main plot missions on hard difficulty, without changing difficulty settings. I recommend to do two playthroughs. Do the first one on easy and get all of the collectibles. Then you create a New Game+ on hard difficulty and mop up the remaining trophies. Hard difficulty itself is a piece of cake if you already have the upgrades from a previous playthrough. This playthrough will take you 5-6 hours only.
The hardest part is the final bossfight:
When fighting Alex Mercer on hard you won't have a chance to refill your health during the rounds, but if you die you will restart the current round with full health. Alex is quite powerful if you try to fight him in direct combat (especially when he is using the whipfist). A good tactic is to equip the hammerfist, jump up as high as possible and smash back down to the ground by holding down the attack button. It takes some while, but is a safe and easy method to survive the whole fight without getting a scratch. In round 1 and 3 you can also use the Whipfist to speed up the process. Keep jumping and perform long range attacks.
Check out the video walkthrough in case you are still having problems.
At the start of the game you can pick your difficulty and you can choose to do this on your first or second playthrough. It will not be much harder than normal and once you have all of the upgrades it will be very easy to complete.
Note: Focus on getting Movement and Health increases before anything else.
1) Use the “whip hand” against Mercer (make a jump and clamp or for whip attack)
2) Use the “hammer hand” (make a jump and clamp or to attack with a hammer). After we took the first column of health from Mercer, he will take a whip and will kill us with it, and therefore our “whip hand” at this stage will not cause damage to Mercer’s health.
3) Repeat the first point.
Video hint: https://www.youtube.com/watch?v=wGHiWB5li2I